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Stock Quarter Mile

Has anyone run their stock (or near stock) 5.0 Fox T-Bird/Cougar at a drag strip? I tried searching and can't find anything matching this. My 1990 Mark VII with nearly 180k miles and only an off road H-Pipe and Thrush welded lers ran 15.5 but thats an H.O. and a much heavier car.

Any ideas or time slips?

Thanks.
1986 Thunderbird 5.0
-FRPP Wires and upgraded ignition parts.
-H.O. Upper Plenum / EGR Spacer / TB

Stock Quarter Mile

Reply #1 –
15.5? That's pretty  good...you're right about all of that. Wow. Any idea what rear end ratio it has?
I have a G-Tech Pro (the FIRST one they ever made in like 1999) and it repeatably gave me 9.4 seconds as a 0-60 for my 1987 20th Anniversary Cougar. Stock 5.0 150 horserpower, car itself, 1/4 tank of gas, me not sitting in it, weighs 3550 lbs.

I think it would be at LEAST a 17 second 1/4 mile, maybe even 18 or 19 depending on options. I think sheetmetal-wise, the Tbirds have a slight weight advantage, and power seat tracks EACH are about 50 lbs. So ranging from an ultra-stripped down four-eye car to a fully loaded 87/88, 5.0/AOD/2.73 rear held constant let's say (that's what I *had* at that run), you could see some significant variation in speediness...

I know Mark VII LSC's could have a 3.27 gear optionally, the LSC anyway with the H.O. would have gotten the 8.8 axle. Not sure if anything higher was available. Next one up would be 3.55 but I feel like that wouldn't be a factory car gearset. Ranger? Maybe.
1987 20th Anniversary Cougar, 302 "5.0" GT-40 heads (F3ZE '93 Cobra) and TMoss Ported H.O. intake, H.O. camshaft
2.5" Duals, no cats, Flowmaster 40s, Richmond 3.73s w/ Trac-Lok, maxed out Baumann shift kit, 3000 RPM Dirty Dog non-lock TC
Aside from the Mustang crinkle headers, still looks like it's only 150 HP...
1988 Black XR7 Trick Flow top end, Tremec 3550
1988 Black XR7 Procharger P600B intercooled, Edelbrock Performer non-RPM heads, GT40 intake AOD, 13 PSI @5000 RPM. 93 octane

Stock Quarter Mile

Reply #2 –
Quote from: ThunderFox;433088
Has anyone run their stock (or near stock) 5.0 Fox T-Bird/Cougar at a drag strip? I tried searching and can't find anything matching this. My 1990 Mark VII with nearly 180k miles and only an off road H-Pipe and Thrush welded lers ran 15.5 but thats an H.O. and a much heavier car.

Any ideas or time slips?

Thanks.


That's pretty good considering stock Mark VIIs (LSC with a 3.27 rear) run around 16.1-16.2 @ 86mph or so.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Stock Quarter Mile

Reply #3 –
I will also note that you people on the east coast must have better tracks or tracks below sea level. Every really good quarter mile track time I see comes from the east coast. Out here guys seem to run about a half second slower.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Stock Quarter Mile

Reply #4 –
Quote from: thunderjet302;433092
I will also note that you people on the east coast must have better tracks or tracks below sea level. Every really good quarter mile track time I see comes from the east coast. Out here guys seem to run about a half second slower.

When I ran my old Mark VII that was at Raceway Park in NJ which is 20 feet above sea-level. Lol

Quote from: ZondaC12;433090
15.5? That's pretty  good...you're right about all of that. Wow. Any idea what rear end ratio it has?

I know the Thunderbird has 2.73's compared to the Mark's 3.27's and even with my top swap the Mark Would have had a nice advantage in horsepower and some torque but there has to be a big weight difference, right? IIRC the Mark was at or around 4k lbs. I'm hoping I can be somewhere in the 16's...
1986 Thunderbird 5.0
-FRPP Wires and upgraded ignition parts.
-H.O. Upper Plenum / EGR Spacer / TB

Stock Quarter Mile

Reply #5 –
I g-tech'd my car back when it was 100% stock and it was always right around 17.00 in the quarter.  That's with 5.0 SO, AOD, and 2.73 gears.  I need to try it again now that I have 5.0 HO, T-5, and 3.73's...its still slow but not nearly as slow as it once was.
'88 'bird, 10.9:1 306 w/TFS top end, forged rods/pistons, T-5 swap & bunch of other stuff, 1-family owned, had it since ‘98, 5.0tbrd88 on Instagram and YouTube

Stock Quarter Mile

Reply #6 –
Quote from: 50tbrd88;433097
I g-tech'd my car back when it was 100% stock and it was always right around 17.00 in the quarter.  That's with 5.0 SO, AOD, and 2.73 gears.  I need to try it again now that I have 5.0 HO, T-5, and 3.73's...its still slow but not nearly as slow as it once was.

I was figuring it would be high 16's at the most. I guess I'll find out for sure within the next month or so when I go to the track with it. My old '77 Olds 98 Coupe with a 350 had similar stock power numbers (165hp / 275 tq), a 3 speed auto, similar rear end gears, much more weight and it still put down 17.4 in the quarter. The T-Bird is definitely faster than that car.
1986 Thunderbird 5.0
-FRPP Wires and upgraded ignition parts.
-H.O. Upper Plenum / EGR Spacer / TB

Stock Quarter Mile

Reply #7 –
I'd hate to think how slow a 5.0 CFI car is haha
83 Thunderbird Heritage - Right Hand Drive
95 Falcon GLi

Stock Quarter Mile

Reply #8 –
My 86 cougat does about 12 seconds to.sixty, no idea on 1/4 mile.

tbird does a bit under 10 to sixty, but it has a t-5 and seems to run better then the cougar.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

Stock Quarter Mile

Reply #9 –
I would think high 16's@ 82 ish....if it's a sport and has working posi that would help with the 60'

Also a sport will have 3.08 vs 2.73....
I'm impressed with the mark7....that hauling for such a stock setup...

My bone stock 93 SC auto super loaded....i.e. fat.
That ran 15.4@89.

Travis

Stock Quarter Mile

Reply #10 –
I would think high 16's@ 82 ish....if it's a sport and has working posi that would help with the 60'

Also a sport will have 3.08 vs 2.73....
I'm impressed with the mark7....that hauling for such a stock setup...

My bone stock 93 SC auto super loaded....i.e. fat.
That ran 15.4@89.

Travis

Stock Quarter Mile

Reply #11 –
Quote from: 50tbrd88;433097
I g-tech'd my car back when it was 100% stock and it was always right around 17.00 in the quarter.  That's with 5.0 SO, AOD, and 2.73 gears.  I need to try it again now that I have 5.0 HO, T-5, and 3.73's...its still slow but not nearly as slow as it once was.

I originally did just an H.O. swap, with full 2.5" exhaust. I probably could have swung a GT40 setup, but I pretty much learned what that was after the fact. I also learned about rear end gears....and confirmed what my seat-of-the-pants-o-meter thought: it was not the major improvement I had expected. I was 17 and had no practical knowledge of power. My uncle had a '96 Vette about that time. He gave my brother and I each a ride once. He never actually...went FAST with it. Mom would never have approved. If only he were the wild type, I would have known what I needed a lot sooner! :rollin:
1987 20th Anniversary Cougar, 302 "5.0" GT-40 heads (F3ZE '93 Cobra) and TMoss Ported H.O. intake, H.O. camshaft
2.5" Duals, no cats, Flowmaster 40s, Richmond 3.73s w/ Trac-Lok, maxed out Baumann shift kit, 3000 RPM Dirty Dog non-lock TC
Aside from the Mustang crinkle headers, still looks like it's only 150 HP...
1988 Black XR7 Trick Flow top end, Tremec 3550
1988 Black XR7 Procharger P600B intercooled, Edelbrock Performer non-RPM heads, GT40 intake AOD, 13 PSI @5000 RPM. 93 octane

Stock Quarter Mile

Reply #12 –
Quote from: turbotrav;433105
I would think high 16's@ 82 ish....if it's a sport and has working posi that would help with the 60'

Also a sport will have 3.08 vs 2.73....
I'm impressed with the mark7....that hauling for such a stock setup...

My bone stock 93 SC auto super loaded....i.e. fat.
That ran 15.4@89.

Travis

That's pretty good. Best stick Thunderbird SC I've seen run was 15.6@90.

The track here is open on py weather days for test and tune. The best day I've had over the past several years was last year when it was 68* with about 70% humidity. The track is 630 feet above sea level. Converting the DA for that day was something like 1400 feet above sea level. When I plug my times into the dragtimes DA calculator my car ends up being .2 seconds and almost 2 mph faster at sea level. Best run that night was 14.12@98+mph with a 2.25 60'. My car spins bad off the line on street tires. Using that calculator it still converted to a 13.9 something at a little over 100mph. I need a cooler day and some drag radials as my 60' sucks. Plus I suck at launching. I've got a full weight (3700+lbs with driver) 13 second car if I could get it to hook.

I wish the track was open on a 45*-50* night :hick:.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Stock Quarter Mile

Reply #13 –
Quote from: 50tbrd88;433097
I g-tech'd my car back when it was 100% stock and it was always right around 17.00 in the quarter.  That's with 5.0 SO, AOD, and 2.73 gears.  I need to try it again now that I have 5.0 HO, T-5, and 3.73's...its still slow but not nearly as slow as it once was.

It's gotta be faster than my Mark VII LSC. At 3900+lbs with driver it hits 60 in a little under 8 seconds. It seems decently quick until I drove it a couple of hours after driving the Thunderbird. The Thunderbird (spinning like a mofookie off the line) will hit 60 in a timed 5.4 seconds.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Stock Quarter Mile

Reply #14 –
Quote from: thunderjet302;433113
It's gotta be faster than my Mark VII LSC. At 3900+lbs with driver it hits 60 in a little under 8 seconds. It seems decently quick until I drove it a couple of hours after driving the Thunderbird. The Thunderbird (spinning like a mofookie off the line) will hit 60 in a timed 5.4 seconds.

Thunderjet....take that bird to the track and get your 13's....it can do it...LOL

Travis